function getMyDate(str,type){
    var oDate = new Date(str),
        oYear = oDate.getFullYear(),
        oMonth = oDate.getMonth()+1,
        oDay = oDate.getDate(),
        oHour = oDate.getHours(),
        oMin = oDate.getMinutes(),
        oSen = oDate.getSeconds(),
        oTime = oYear +'-'+ getzf(oMonth) +'-'+ getzf(oDay) +' '+ getzf(oHour) +':'+ getzf(oMin) +':'+getzf(oSen);//最后拼接时间


    if(type==1){
        return oTime;
    }else if(type==2){
        return oYear +'-'+ getzf(oMonth) +'-'+ getzf(oDay);
    }else if(type==3){
        return getzf(oHour) +':'+ getzf(oMin) +':'+getzf(oSen);
    }
    else if(type==4){
        return getzf(oMonth) +'.'+ getzf(oDay)+'-'+getzf(oHour) +':'+ getzf(oMin) ;
    }

};
//补0操作
function getzf(num){
    if(parseInt(num) < 10){
        num = '0'+num;
    }
    return num;
}